<template>
    <div style="padding: 10px">
        <!--      功能区-->
        <div style="margin: 10px 0">
            <el-button type="primary" @click="add()">新增</el-button>
            <el-button type="primary">导入</el-button>
            <el-button type="primary">导出</el-button>
        </div>
        <!--      搜索区-->
        <div style="margin: 10px 0">
            <el-input v-model="search" placeholder="请输入关键字" style="width: 20%" clearable/>
            <el-button type="primary" style="margin-left: 5px;" @click="load">查询</el-button>
        </div>
        <!--      表格主体-->
        <el-table :data="tableData" border stripe style="width: 100%">
            <el-table-column prop="id" label="ID" sortable/>
            //sortable 排序功能
            <el-table-column prop="username" label="用户名"/>
            <el-table-column prop="nickName" label="昵称"/>
            <el-table-column prop="age" label="年龄"/>
            <el-table-column prop="sex" label="性别"/>
            <el-table-column prop="address" label="地址"/>
            <el-table-column label="角色">
                <template #default="scope">
                    <span v-if="scope.row.role === 1">管理员</span>
                    <span v-if="scope.row.role === 2">普通用户</span>
                </template>
            </el-table-column>
            <el-table-column fixed="right" label="操作" width="120">
                <template #default="scope">
                    <el-button link type="primary" @click="handleEdit(scope.row)">编辑</el-button>
                    <el-popconfirm title="确认删除吗？" @confirm="handleDelete(scope.row.id)">
                        <template #reference>
                            <el-button type="text" >删除</el-button>
                        </template>
                    </el-popconfirm>
                </template>
            </el-table-column>
        </el-table>
        <div style="margin: 10px">
            <!--          分页功能-->
            <el-pagination
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :currentPage="currentPage"
                    :page-sizes="[5, 10, 20]"
                    :page-size="pageSize"
                    layout="total, sizes, prev, pager, next, jumper"
                    :total="total"
            />
            <!--        操作二次确认(弹窗)-->
            <el-dialog v-model="dialogVisible" title="提示" width="30%">
                <el-form :model="form" label-width="120px">
                    <el-form-item label="用户名">
                        <el-input v-model="form.username" style="width: 80%"/>
                    </el-form-item>
                    <el-form-item label="昵称">
                        <el-input v-model="form.nickName" style="width: 80%"/>
                    </el-form-item>
                    <el-form-item label="年龄">
                        <el-input v-model="form.age" style="width: 80%"/>
                    </el-form-item>
                    <el-form-item label="性别">
                        <el-radio v-model="form.sex" label="男" size="large">男</el-radio>
                        <el-radio v-model="form.sex" label="女" size="large">女</el-radio>
                        <el-radio v-model="form.sex" label="未知" size="large">未知</el-radio>
                    </el-form-item>
                    <el-form-item label="地址">
                        <el-input type="textarea" v-model="form.address" style="width: 80%"/>
                    </el-form-item>
                </el-form>
                <template #footer>
                    <span class="dialog-footer">
                        <el-button @click="dialogVisible = false">取消</el-button>
                        <el-button type="primary" @click="save">确认</el-button>
                    </span>
                </template>
            </el-dialog>
        </div>
    </div>
</template>

<script>
    import request from "../utils/request";         //引入

    export default {
        name: 'HomeView',
        components: {},
        data() {
            return {
                form:{},
                dialogVisible:false,    //弹窗控制变量
                search: '',             //用于模糊搜索的变量
                currentPage:1,         //记录当前页
                pageSize:10,
                total:0,
                tableData: []
            }
        },
        created() {
            this.load()
        },
        methods: {
            //实现数据渲染
            load(){
                request.get("/user",{
                    params:{
                        pageNum:this.currentPage,
                        pageSize:this.pageSize,
                        search:this.search,
                    }
                }).then(res => {
                    console.log(res)
                    this.tableData = res.data.records
                    this.total = res.data.total
                })
            },
            //实现新增方法
            add() {
                this.dialogVisible = true   //控制变量，以控制表单是否显示
                this.form = {}              //清空表单
            },
            save(){
                if (this.form.id){//更新
                    request.put("/user",this.form).then(res => { //请求，并传参数。 then是Es6语法用于获取后台返回结果。
                        console.log(res)            //浏览器打印res
                        if (res.code === '0'){       //判断是否成功
                            this.$message({//输出提示，用element提供的方法$message
                                type: "success",
                                message: "更新成功啦"
                            })
                        } else {
                            this.$message({
                                type: "error",
                                message: res.msg
                            })
                        }
                        this.load() //更新表格数据   通过重新获取数据的方式
                        this.dialogVisible = false  //关闭弹窗
                    })
                }
                else {//新增
                    request.post("/user",this.form).then(res => {
                        console.log(res)
                        if (res.code === '0'){
                            this.$message({
                                type: "success",
                                message: "新增成功啦"
                            })
                        } else {
                            this.$message({
                                type: "error",
                                message: res.msg
                            })
                        }
                       this.load() //更新表格数据
                       this.dialogVisible = false  //关闭弹窗
                    })
                }
            },
            handleEdit(row) {
                this.form = JSON.parse(JSON.stringify(row))
                this.dialogVisible = true
            },
            handleDelete(id){
                console.log(id)
                request.delete("/user/" + id).then(res => {
                    if (res.code === '0'){
                        this.$message({
                            type: "success",
                            message: "删除成功啦"
                        })
                    } else {
                        this.$message({
                            type: "error",
                            message: res.msg
                        })
                    }
                    this.load()
                })
            },
            handleSizeChange(pageSize) {//改变当前每页的个数触发
                this.pageSize = pageSize
                this.load()
            },
            handleCurrentChange(pageNum) {//改变当前页码出发
                this.currentPage = pageNum
                this.load()
            }
        }
    }
</script>
